Module bss 
Source - BssCandidacy
 - The BssCandidacy type is used to rank fidl_common::BssDescription values. It is ordered
first by Protection and then by Dbm.
 - BssDescription
 
- Protection
 - Supported wireless network protection.
 - Standard
 
- channel_map
 - Given a list of BssDescription, return a mapping from channel to the number of BSS using
that channel.
 - phy_standard_map
 - Given a list of BssDescription, categorize each one based on the latest PHY standard it
supports and return a mapping from Standard to number of BSS.